This week, we launched a new "Call to Action" feature for YouTube's nonprofit partners, which allows them to use InVideo overlays to drive traffic to an off-YouTube web page, where they can collect signatures, email addresses, or even donations. Already, we're seeing nonprofit organizations use this new feature with great success.

On Sunday, to commemorate World Water Day, we featured a video from charity:water on the YouTube homepage. The video included a Call to Action overlay that encouraged YouTube users to donate money to help build wells and provide clean, safe drinking water for those who don't have it.

The response from the YouTube community was overwhelming -- thanks to you, charity:water was able to raise over $10,000 in one day from the video. That's enough to build two brand-new wells in the Central African Republic and give over 150 people clean drinking water for 20 years!

Feeling inspired? If you're a YouTube nonprofit partner, adding a Call to Action overlay is easy. Just go to "Edit Video" and fill out the fields in the section marked "Call to Action overlay." All you have to do is include a short headline, ad text, a destination url, and upload an optional image, and the overlay will appear whenever someone watches your video.

If you're a nonprofit organization in the U.S. or U.K. who hasn't yet joined the YouTube Nonprofit Program, but would like to gain access to Call to Action and other special benefits, you can apply now at www.youtube.com/nonprofits.